This is an overview of the technical specifications.
INSTRUCTIONS & INFO
SIM Type: Micro-SIM (3FF)
Operating System: Android 4.4.2 (Kit Kat)
Network technology: 4G LTE Note: Limited 4G LTE availability in select markets. 4G speeds delivered by HSPA+ (with enhanced backhaul) and LTE, where applicable. Not available everywhere. Deployment ongoing. Compatible device and data plan required. Learn more at att.com/network.
Operating frequencies: Note: Refer to International Services for equipment, roaming partner, pricing, and available services information.